A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Road as well as water-stable layer and preparation process thereof
The invention discloses a road as well as a water-stable layer and a preparation process thereof, and belongs to the technical field of phosphogypsum solid waste recycling. The road water-stable layer is a solidified soil structure layer formed by solidifying and forming a water-stable mixture, the water-stable mixture comprises modified phosphogypsum, an active component, loosened soil and water, the modified phosphogypsum is formed by calcining phosphogypsum and a modifier at high temperature, and the modifier comprises the following components in percentage by weight: 88-94% of CaO, 4-9% of SiO2 and 1.5-3% of Al2O3. The phosphogypsum-based cementing material is used for a temporary road and a water stable layer of the road, so that the phosphogypsum-based cementing material can replace a large amount of lime, cement, fly ash and other traditional road building materials, the strength, especially the early strength, of the lime-ash soil base layer is effectively improved, the structural integrity is enhanced, the shrinkage of the base layer material is reduced, and the crack resistance is improved.
本发明公开了一种道路及其水稳层和制备工艺，属于磷石膏固废物再生利用技术领域。本发明的道路水稳层，为由水稳混合料经固化成型而成的固化土结构层，所述水稳混合料包含有改性磷石膏、活性组分、松土和水，其中改性磷石膏为将磷石膏与改性剂经高温煅烧而成，所述改性剂包括以下重量百分比的组分：CaO 88‑94％、SiO24‑9％、Al2O31.5‑3％。本发明将磷石膏基胶凝材料用于临时道路及道路的水稳层，从而可以替代大量的石灰、水泥、粉煤灰等传统筑路材料，并有效提高二灰土基层的强度，特别是早期强度，增强结构的整体性，降低基层材料的收缩，提高抗裂性能。
Road as well as water-stable layer and preparation process thereof
The invention discloses a road as well as a water-stable layer and a preparation process thereof, and belongs to the technical field of phosphogypsum solid waste recycling. The road water-stable layer is a solidified soil structure layer formed by solidifying and forming a water-stable mixture, the water-stable mixture comprises modified phosphogypsum, an active component, loosened soil and water, the modified phosphogypsum is formed by calcining phosphogypsum and a modifier at high temperature, and the modifier comprises the following components in percentage by weight: 88-94% of CaO, 4-9% of SiO2 and 1.5-3% of Al2O3. The phosphogypsum-based cementing material is used for a temporary road and a water stable layer of the road, so that the phosphogypsum-based cementing material can replace a large amount of lime, cement, fly ash and other traditional road building materials, the strength, especially the early strength, of the lime-ash soil base layer is effectively improved, the structural integrity is enhanced, the shrinkage of the base layer material is reduced, and the crack resistance is improved.
本发明公开了一种道路及其水稳层和制备工艺，属于磷石膏固废物再生利用技术领域。本发明的道路水稳层，为由水稳混合料经固化成型而成的固化土结构层，所述水稳混合料包含有改性磷石膏、活性组分、松土和水，其中改性磷石膏为将磷石膏与改性剂经高温煅烧而成，所述改性剂包括以下重量百分比的组分：CaO 88‑94％、SiO24‑9％、Al2O31.5‑3％。本发明将磷石膏基胶凝材料用于临时道路及道路的水稳层，从而可以替代大量的石灰、水泥、粉煤灰等传统筑路材料，并有效提高二灰土基层的强度，特别是早期强度，增强结构的整体性，降低基层材料的收缩，提高抗裂性能。
Road as well as water-stable layer and preparation process thereof
一种道路及其水稳层和制备工艺
ZHOU JIACHENG (author) / SHI XIONG (author) / HUANG JIANZHANG (author) / LI YONGCHUN (author)
2021-11-30
Patent
Electronic Resource
Chinese
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